A nurse is analyzing test results for a client who has a pulmonary embolism. The nurse should identify that which of the following findings indicates a moderate to large pulmonary embolism and the possibility of death?

A. Airway obstruction occurs due to thinning mucus: Mucus thinning is typically not associated with airway obstruction. Instead, airway obstruction occurs when the mucus is thickened, leading to blockage of the airways, especially in asthma.
B. Inflammation is reduced due to airway diameter: During bronchospasm, airway inflammation increases, not reduces. The diameter of the airways becomes narrowed due to swelling, mucus production, and muscle contraction, exacerbating asthma symptoms.
C. Decreased mucus production contributes to airway constriction: Mucus production generally increases in asthma, contributing to airway narrowing and constriction. Decreased mucus would not be a direct factor in bronchospasm.
D. Bronchospasm occurs when there is inflammation, edema, and excess mucus: Bronchospasm in asthma is caused by inflammation, edema, and excess mucus production, all of which contribute to airway narrowing and difficulty breathing. This is the most accurate description of the physiological process in asthma exacerbations.

A. Hyperventilate the client: Controlled hyperventilation reduces carbon dioxide levels, leading to cerebral vasoconstriction and decreased intracranial pressure, making it a temporary emergency measure in brain herniation.
B. Decrease sedation: Sedation is often maintained to reduce metabolic demand and intracranial pressure. Decreasing it could cause agitation and increase ICP.
C. Lower blood pressure: Lowering blood pressure could reduce cerebral perfusion, worsening ischemia. In brain herniation, maintaining adequate perfusion pressure is essential.
D. Reduce the temperature in the room: Mild hypothermia may be therapeutic, but adjusting room temperature is not an effective or immediate treatment for brain herniation.